Would it make sense to run
"tunefs.lustre --mgs --writeconf --mgs --mdt /dev/sda /dev/sdb" ?
The original mkfs command used to create the MDT was
mkfs.lustre --reformat --fsname=iconfs --mgs --mdt --backfstype=zfs
--device-size 131072 \
--index=0 lustre-mgs-mdt/mgsmdt0 mirror /dev/sda /dev/sdb
Not sure if both device names should be included or the zpool name.
The latest 2.5.x version also fails to mount MDT with similar messages,
though
zpool seems intact... is there anyway to get MDT to mount?
[root@icon0 kar]# more /proc/fs/lustre/version
lustre: 2.5.58
kernel: patchless_client
build: 2.5.58-g5565877-PRISTINE-2.6.32-431.11.2.el6.netboot
[root@icon0 kar]# /sbin/service lustre start mgsmdt
Mounting lustre-mgs-mdt/mgsmdt0 on /mnt/lustre/local/mgsmdt
mount.lustre: mount lustre-mgs-mdt/mgsmdt0 at /mnt/lustre/local/mgsmdt
failed: File exists
[root@icon0 kar]# zpool list
NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT
lustre-mgs-mdt 74.5G 47.2G 27.3G 63% 1.00x ONLINE -
Corresponding console messages:
2014-04-24T10:36:53.736967-04:00 icon0.psc.edu kernel: Lustre: Lustre:
Build Version: 2.5.58-g5565877-PRISTINE-2.6.32-431.11.2.el6.netboot
2014-04-24T10:36:53.986362-04:00 icon0.psc.edu kernel: LNet: Added LNI
10.10.101.160@o2ib [8/256/0/180]
2014-04-24T10:36:54.005177-04:00 icon0.psc.edu kernel: LNet: Added LNI
128.182.75.160@tcp10 [8/256/0/180]
2014-04-24T10:36:54.009556-04:00 icon0.psc.edu kernel: LNet: Accept
secure, port 988
2014-04-24T10:36:57.428805-04:00 icon0.psc.edu kernel: LustreError:
11-0: iconfs-MDT0000-lwp-MDT0000: Communicating with 0@lo, operation
mds_connect failed with -11.
2014-04-24T10:36:58.600958-04:00 icon0.psc.edu kernel: LustreError:
11888:0:(mdd_device.c:1050:mdd_prepare()) iconfs-MDD0000: failed to
initialize lfsck: rc = -17
2014-04-24T10:36:58.600978-04:00 icon0.psc.edu kernel: LustreError:
11888:0:(obd_mount_server.c:1776:server_fill_super()) Unable to start
targets: -17
2014-04-24T10:36:58.614082-04:00 icon0.psc.edu kernel: Lustre: Failing
over iconfs-MDT0000
2014-04-24T10:37:04.885917-04:00 icon0.psc.edu kernel: Lustre:
11888:0:(client.c:1912:ptlrpc_expire_one_request()) @@@ Request sent has
timed out for slow reply: [sent 1398350218/real 1398350218]
req@ffff8802fca1a000 x1466276472946828/t0(0)
o251->MGC10.10.101.160@o2ib@0@lo:26/25 lens 224/224 e 0 to 1 dl
1398350224 ref 2 fl Rpc:XN/0/ffffffff rc 0/-1
2014-04-24T10:37:05.418516-04:00 icon0.psc.edu kernel: Lustre: server
umount iconfs-MDT0000 complete
2014-04-24T10:37:05.418535-04:00 icon0.psc.edu kernel: LustreError:
11888:0:(obd_mount.c:1338:lustre_fill_super()) Unable to mount (-17)
TIA,
-Anjana Kar
Pittsburgh Supercomputing Center
[email protected]
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